CN104863904A - Strong dynamic cyclone ejector - Google Patents
Strong dynamic cyclone ejector Download PDFInfo
- Publication number
- CN104863904A CN104863904A CN201510286589.0A CN201510286589A CN104863904A CN 104863904 A CN104863904 A CN 104863904A CN 201510286589 A CN201510286589 A CN 201510286589A CN 104863904 A CN104863904 A CN 104863904A
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- Prior art keywords
- main spindle
- ejector
- drive main
- mechanical seal
- impeller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a strong dynamic ejector and belongs to cyclone pressurizing devices for various kinds of fluid. According to the strong dynamic cyclone ejector, a double-helix impeller or a single-helix impeller is used for obtaining a strong cyclone field, a single-direction momentum is converted into a multi-direction momentum, and thus efficient and high-supercharge-ratio ejection is completed. The ejector is of a vertical structure and comprises an external machine body, the double-helix impeller or the single-helix impeller, a main shaft mechanism, a main shaft supporting device and a main shaft sealing device, wherein the external machine body is composed of a motor base, a bearing box, a cylinder, a shrinkage pipe, a throat pipe and a diffuser pipe. A cantilever structure supported by a specific span bearing is adopted by the main shaft supporting device, and a mechanical seal arranged in a sealing box is adopted by the main shaft sealing device. According to the strong dynamic cyclone ejector, the double-helix impeller or the single-helix impeller rotates at a high speed to obtain a strong cyclone field, so that efficient momentum conversion is achieved, the size of the ejector can be obviously reduced, ejecting efficiency is improved, operation is stable, and adaptability is high; the ejector is simple in structure, easy to maintain and can be widely applied to multi-phase or single-phase pressurizing occasions.
Description
Technical field
The present invention relates to a kind of dynamically strong vortex lead jetting device, belong to multiple fluid and pressed gas jet flow pressurizing applied technical field.
Background technique
Ejector be a kind of utilize jet turbulent diffusion to come transferring energy and quality fluid machinery and mix reaction equipment.Compare vacuum machine, ejector equipment is simple and reliable, and ejector and equipment connection simply, manufacture also uncomplicated.In recent years, ejector is widely used in energy source and power, petrochemical industry, defence and military, electric heating, metallurgical mining, building, refrigeration, wine brewing, pharmacy and solar seawater desalination etc. technical field.
Ejector utilizes the jet action draws low pressure fluid of high-pressure liquid to carry out quality transmission and momentum transfer, and then completes supercharging, the speedup effect of low-pressure gas.Pressurized working fluid and low-pressure injection fluid can be all liquid or gas.Because ejector size is little, structure simply, is easily processed, movement-less part, therefore operating trouble is few, reliable, easy to maintenance, good airproof performance, can process and carry flammable explosive gas, and insensitive to impurity such as gas-liquids.But traditional ejector is only that axial momentum exchanges, and efficiency is low, causes a large amount of in-fighting, and injection charging efficiency is low; And not easily regulate, fluctuation of service during duty parameter variation, causes ejector to be restricted at the large-scale promotion application of the numerous areas such as such as natural gas extraction.Therefore it is necessary for developing a kind of dynamically strong vortex lead jetting device.
Summary of the invention
In order to overcome problems of the prior art, the invention provides a kind of dynamically strong vortex lead jetting device, its object is to utilize additionaling power source to accelerate to rotate to drive helical runner, and by adjustment rotating speed alter ejector capacity, effectively improve the problem that static ejector energy transfer efficiency is lower, adjustability is poor.
The technical solution that the present invention adopts is: a kind of dynamically strong vortex lead jetting device, and it comprises a converging diverging nozzle, a mechanical driving mechanism and a mechanical sealing mechanism, and described converging diverging nozzle adopts diffuser pipe, throat's pipe is connected successively with collapsible tube; It also comprises a helical runner, collapsible tube connector drum, bearing housing and the motor cabinet successively of described converging diverging nozzle, described mechanical driving mechanism adopts the motor be fixed on motor cabinet to connect by the drive main spindle of the bearings in bearing housing through coupling, described mechanical sealing mechanism arranges a mechanical seal case in the bottom of bearing housing, and the mechanical seal being positioned at mechanical seal case matches with drive main spindle; The inner side of described cylindrical shell is provided with a closed chuck, and the cylindrical shell of closed chuck upper position is provided with a low pressure inlet pipe, and the cylindrical shell of closed chuck lower position is provided with a high-pressure inlet pipe; Described drive main spindle is provided with drive main spindle center hole from downward this section of axle of bearing, and the drive main spindle through closed chuck arranges a helical runner by connecting key and set screw nut; Described mechanical seal case is provided with the outer Cooling Holes of multiple cooling mechanical seal, being provided with inlet hole near the bottom closing chuck, the drive main spindle inside mechanical seal is provided with Cooling Holes in multiple cooling mechanical seal.
Described helical runner adopts the double-helix impeller be made up of upper helical runner and lower helical runner, and double-helix impeller is provided with multiple the first perforation communicated with drive main spindle center hole.
Described helical runner adopts single-screw impeller, and single-screw impeller is provided with multiple the second perforation communicated with drive main spindle center hole.
Dynamically the working mechanism of strong vortex lead jetting device be change conventional ejector acceleration and pressure decrease then unidirectional momentum transfer complete the groundwork mechanism of injection, be the eddy flow momentum acceleration and pressure decrease that utilizes shaft work to produce in essence thus carry out axially and radial momentum transfer complete injection process, this injection process forces eddy flow vortex owing to being formed, injection pressure stability, greatly improves the anti-wave properties of device; Controlled and the conveniently adjusted injection pressure of swirl strength, enhances the applicability of device; The intrinsic propesties of multidimensional momentum transfer is conducive to reducing momentum transfer section size has positive effect for reduction plant bulk.This device belongs to typical centre-driven, all feeding structure forms of ring, is applicable to the multiple occasions such as gas injection gas, liquid ejecting gas, liquid ejecting liquids and gases injection liquid.
The invention has the beneficial effects as follows:
1, it belongs to a kind of dynamically injection supercharging technology equipment, so have the advantage of static ejector and compressed machinery concurrently: compared with other dynamic supercharging equipment (as pump, compressor and blower fan etc.), power consumption is little, size is little, efficiency is high, in rock gas production and transport process, utilize pressurized gas compression and low pressure gas, play the effect of supercharging exploitation, have good development prospect.Except for except fluid pressurized machinery, also can be used as mass transfer and chemical mixing consersion unit.
2, simple, the simple and convenient operation and maintenance of this ejector structure, bearing capacity is strong, and can directly utilize pressure energy source as operation power, do not need to increase supplementary equipment in addition, comprehensive benefit is remarkable.
3, after introducing mechanical seal and power plant, its ejector capacity and the more static ejector of supercharging improve a lot, and induction efficiency is higher, operation is more stable, applicability is stronger.
4, Spatial Multi-Dimensional momentum transfer, effectively reduces ejector size; Leak in equipment and reduce, in-fighting reduces, and induction efficiency improves.
5, dynamically strong vortex lead jetting device momentum transfer can realize supersonic flows, and transient response performance is good, and can realize gas isentropic Compression, process efficiency is high.
Above plurality of advantages makes dynamic ejector obtain application in the recovery and natual gas dehydrate unit etc. of Gas Exploitation And Transmission, emptying natural gas, realizes good economic benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a kind of structural drawing adopting the dynamically strong vortex lead jetting device of double-helix impeller.
Fig. 2 is the A enlarged view in Fig. 1.
Fig. 3 is a kind of structural drawing adopting the dynamically strong vortex lead jetting device of single-screw impeller (reducing, change helix angle).
In figure: 1, diffuser pipe, 2, throat manages, 3, collapsible tube, 4, connecting key, 4a, set screw nut, 5, double-helix impeller, 5a, upper helical runner, 5b, lower helical runner, 5c, first perforation, 6, low pressure inlet pipe, 7, mechanical seal case, 7a, outer Cooling Holes, 8, bearing, 9, bearing housing, 10, motor cabinet, 11, motor, 12, coupling, 13, drive main spindle, 13a, inlet hole, 13b, interior Cooling Holes, 13c, high-pressure outlet, 13d, drive main spindle center hole, 14, mechanical seal, 15, close chuck, 16, cylindrical shell, 17, high-pressure inlet pipe, 18, single-screw impeller, 18a, second perforation.
Embodiment
Fig. 1,2,3 shows a kind of structural drawing with the dynamic strong vortex lead jetting device of common feature.Dynamically strong vortex lead jetting device comprises converging diverging nozzle, mechanical driving mechanism, mechanical sealing mechanism and helical runner, and converging diverging nozzle adopts diffuser pipe 1, throat's pipe 2 is connected successively with collapsible tube 3.Collapsible tube 3 connector drum 16, bearing housing 9 and the motor cabinet 10 successively of converging diverging nozzle.Mechanical driving mechanism adopts the motor 11 be fixed on motor cabinet 10 to connect through coupling 12 drive main spindle 13 supported by the bearing 8 in bearing housing 9.Mechanical sealing mechanism arranges a mechanical seal case 7 in the bottom of bearing housing 9, and the mechanical seal 14 being positioned at mechanical seal case 7 matches with drive main spindle 13.The inner side of cylindrical shell 16 is provided with a closed chuck 15, and the cylindrical shell 16 of closed chuck 15 upper position is provided with a low pressure inlet pipe 6, and the cylindrical shell 16 of closed chuck 15 lower position is provided with a high-pressure inlet pipe 17.Drive main spindle 13 is provided with drive main spindle center hole 13d from downward this section of axle of bearing 8, and the drive main spindle 13 through closed chuck 15 arranges a helical runner by connecting key 4 and set screw nut 4a.Mechanical seal case 7 is provided with the outer Cooling Holes 7a of multiple cooling mechanical seal 14, being provided with inlet hole 13a near the bottom closing chuck 15, the drive main spindle 13 inside mechanical seal 14 is provided with Cooling Holes 13b in multiple cooling mechanical seal 14.
embodiment 1
Fig. 1 shows a kind of structural drawing adopting the dynamically strong vortex lead jetting device of double-helix impeller.Helical runner adopts double-helix impeller 5, machine body is based on vertical structure, comprise the external engine body be made up of cylindrical shell 16, motor cabinet 10, bearing housing 9, collapsible tube 3, diffuser pipe 1 and throat's pipe 2, they are fixedly connected sequentially together, and internal body is provided with double-helix impeller 5, mainshaft mechanism, main shaft support device and main shaft sealing device.Mainshaft mechanism connects drive main spindle 13 by motor 11 by coupling 12 and forms, and drive main spindle 13 working speed is adjustable.Main shaft support device adopts the bearing 8 installing a pair particular span in bearing housing 9 as support, in conjunction with the mechanical seal case 7 be connected with bearing housing 9, forms the cantilever structure of drive main spindle 13, for installing multi-form double-helix impeller 5.The one closed chuck 15 sealed by O type circle being set between the lower flange and cylindrical shell 16 upper flange of bearing housing 9, mixing with the high-pressure liquid that high-pressure inlet pipe 17 enters for avoiding the flowing medium entered from low pressure inlet pipe 6.Main shaft sealing device adopts the double mechanical seal 14 be arranged in mechanical seal case 7 to leak to stop fluid.Mechanical seal case 7 is for installing the stationary ring of mechanical seal 14, and the elastic element of mechanical seal 14 and rotating ring are immersed in the cooling completing mechanical seal 14 in low pressure inlet medium.Entered the hollow parts of drive main spindle 13 after low pressure inlet medium is horizontally through mechanical seal 14 by the duct of drive main spindle 13, finally, pressure lowest part the highest at swirl velocity is entered the momentum transfer completing high low pressure medium in throat's pipe 2 by injection.
Helical runner adopts the double-helix impeller 5 be made up of upper helical runner 5a and lower helical runner 5b, and double-helix impeller 5 is provided with multiple the first perforation 5c communicated with drive main spindle center hole 13d.Two kinds of impellers (upper helical runner 5a, lower helical runner 5b) of double-helix impeller 5 and the diameter of axle have its specific geomery, and by special angle relation between two kinds of blades.Adopt connecting key 4 and set screw nut 4a to be connected between the axle sleeve of axial blade impeller and the hollow shaft section of drive main spindle 13, and have multiplely to communicate with drive main spindle center hole 13d, cross section is the first circular perforation 5c.
embodiment 2
Fig. 3 shows a kind of structural drawing adopting the dynamically strong vortex lead jetting device of single-screw impeller (reducing, change helix angle).Helical runner adopts single-screw impeller 18.The leaf footpath, pitch, the diameter of axle, helix angle etc. of single-screw impeller 18 are all determined by specific operation.Adopt connecting key 4 and set screw nut 4a to be connected between the axle sleeve of single-screw impeller 18 and the hollow shaft section of drive main spindle 13, and have multiplely to communicate with drive main spindle center hole 13d, the second perforation 18a that cross section is square.
Claims (3)
1. a dynamic strong vortex lead jetting device, it comprises a converging diverging nozzle, a mechanical driving mechanism and a mechanical sealing mechanism, and described converging diverging nozzle adopts diffuser pipe (1), throat's pipe (2) is connected successively with collapsible tube (3); It is characterized in that: further comprising a helical runner, collapsible tube (3) connector drum (16), bearing housing (9) and the motor cabinet (10) successively of described converging diverging nozzle, described mechanical driving mechanism adopts the motor (11) be fixed on motor cabinet (10) to connect through coupling (12) drive main spindle (13) supported by the bearing (8) in bearing housing (9), described mechanical sealing mechanism arranges a mechanical seal case (7) in the bottom of bearing housing (9), and the mechanical seal (14) being positioned at mechanical seal case (7) matches with drive main spindle (13); The inner side of described cylindrical shell (16) is provided with a closed chuck (15), the cylindrical shell (16) of closed chuck (15) upper position is provided with a low pressure inlet pipe (6), the cylindrical shell (16) of closed chuck (15) lower position is provided with a high-pressure inlet pipe (17); Described drive main spindle (13) from bearing (8) downwards this section of axle be provided with drive main spindle center hole (13d), through close chuck (15) drive main spindle (13) on by connecting key (4) and set screw nut (4a), a helical runner is set; Described mechanical seal case (7) is provided with the outer Cooling Holes (7a) of multiple cooling mechanical seal (14), be provided with inlet hole (13a) near the bottom closing chuck (15), the drive main spindle (13) of mechanical seal (14) inner side is being provided with the interior Cooling Holes (13b) of multiple cooling mechanical seal (14).
2. one according to claim 1 dynamically strong vortex lead jetting device, it is characterized in that: described helical runner adopts the double-helix impeller (5) be made up of upper helical runner (5a) and lower helical runner (5b), and double-helix impeller (5) is provided with multiple the first perforation (5c) communicated with drive main spindle center hole (13d).
3. one according to claim 1 dynamically strong vortex lead jetting device, is characterized in that: described helical runner adopts single-screw impeller (18), and single-screw impeller (18) is provided with multiple the second perforation (18a) communicated with drive main spindle center hole (13d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286589.0A CN104863904B (en) | 2015-05-30 | 2015-05-30 | One kind dynamically strong vortex lead jetting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286589.0A CN104863904B (en) | 2015-05-30 | 2015-05-30 | One kind dynamically strong vortex lead jetting device |
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| Publication Number | Publication Date |
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| CN104863904A true CN104863904A (en) | 2015-08-26 |
| CN104863904B CN104863904B (en) | 2017-03-08 |
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| CN201510286589.0A Active CN104863904B (en) | 2015-05-30 | 2015-05-30 | One kind dynamically strong vortex lead jetting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801687A (en) * | 2017-01-20 | 2017-06-06 | 大连理工大学 | Rotating injection booster after a kind of autoexcitation |
| CN108443239A (en) * | 2018-04-11 | 2018-08-24 | 大连理工大学 | A kind of multifunctional static induction apparatus |
| CN108662435A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | Natural gas well pressure energy utilizes device |
| CN108869410A (en) * | 2018-06-11 | 2018-11-23 | 中国科学院工程热物理研究所 | A kind of blade and the fluid control method for blade |
| EP3362382A4 (en) * | 2015-10-15 | 2019-10-02 | Aqoya Technologies Ltd. | Material processing by controllably generated acoustic effects |
| CN114551930A (en) * | 2022-01-14 | 2022-05-27 | 山东大学 | Variable-flow gas mixing injection device, fuel cell system and method |
| CN115788978A (en) * | 2022-11-25 | 2023-03-14 | 豪顿银湖(杭州)低碳科技有限公司 | High-efficient water jet air exhaust vacuum device |
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| CN2184809Y (en) * | 1993-01-20 | 1994-12-07 | 刘昌兴 | Rotary jet pump |
| CN1120130A (en) * | 1995-04-22 | 1996-04-10 | 天津开发区超凡软基改良新技术公司 | Jet vacuum pump specially for strengthening weak ground by vacuum precompression method |
| CN103485799A (en) * | 2013-09-17 | 2014-01-01 | 长安大学 | Spiral concrete sprayer |
| CN204828083U (en) * | 2015-05-30 | 2015-12-02 | 大连理工大学 | Strong whirl ejector of developments |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB240900A (en) * | 1924-07-01 | 1925-10-01 | Louis Friedmann | Improvements in and relating to exhaust steam injectors |
| CN2184809Y (en) * | 1993-01-20 | 1994-12-07 | 刘昌兴 | Rotary jet pump |
| CN1120130A (en) * | 1995-04-22 | 1996-04-10 | 天津开发区超凡软基改良新技术公司 | Jet vacuum pump specially for strengthening weak ground by vacuum precompression method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3362382A4 (en) * | 2015-10-15 | 2019-10-02 | Aqoya Technologies Ltd. | Material processing by controllably generated acoustic effects |
| CN106801687A (en) * | 2017-01-20 | 2017-06-06 | 大连理工大学 | Rotating injection booster after a kind of autoexcitation |
| CN108662435A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | Natural gas well pressure energy utilizes device |
| CN108443239A (en) * | 2018-04-11 | 2018-08-24 | 大连理工大学 | A kind of multifunctional static induction apparatus |
| CN108443239B (en) * | 2018-04-11 | 2023-10-31 | 大连理工大学 | Multifunctional static injection device |
| CN108869410A (en) * | 2018-06-11 | 2018-11-23 | 中国科学院工程热物理研究所 | A kind of blade and the fluid control method for blade |
| CN114551930A (en) * | 2022-01-14 | 2022-05-27 | 山东大学 | Variable-flow gas mixing injection device, fuel cell system and method |
| CN114551930B (en) * | 2022-01-14 | 2023-08-11 | 山东大学 | Variable flow gas mixing injection device, fuel cell system and method |
| CN115788978A (en) * | 2022-11-25 | 2023-03-14 | 豪顿银湖(杭州)低碳科技有限公司 | High-efficient water jet air exhaust vacuum device |
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| CN104863904B (en) | 2017-03-08 |
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